@article{DE_1968_4_6_a7,
     author = {A. A. Jushchenko},
     title = {Ljapunov functions and the continuation of solutions of differential equations},
     journal = {Differencialʹnye uravneni\^a},
     pages = {1022--1034},
     publisher = {mathdoc},
     volume = {4},
     number = {6},
     year = {1968},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1968_4_6_a7/}
}